<template>
  <div>
    <div class="button-box clearflex">
      <el-button @click="addMenu('0')" type="primary">新增根菜单</el-button>
    </div>

    <!-- 由于此处菜单跟左侧列表一一对应所以不需要分页 pageSize默认999 -->
    <el-table :data="tableData" border row-key="ID" stripe>
      <el-table-column label="ID" min-width="100" prop="ID"></el-table-column>
      <el-table-column label="路由Name" min-width="160" prop="name"></el-table-column>
      <el-table-column label="路由Path" min-width="160" prop="path"></el-table-column>
      <el-table-column label="是否隐藏" min-width="100" prop="hidden">
        <template slot-scope="scope">
          <span>{{scope.row.hidden?"隐藏":"显示"}}</span>
        </template>
      </el-table-column>
      <el-table-column label="父节点" min-width="90" prop="parentId"></el-table-column>
      <el-table-column label="排序" min-width="70" prop="sort"></el-table-column>
      <el-table-column label="文件路径" min-width="360" prop="component"></el-table-column>
      <el-table-column label="展示名称" min-width="120" prop="authorityName">
        <template slot-scope="scope">
          <span>{{scope.row.meta.title}}</span>
        </template>
      </el-table-column>
      <el-table-column label="图标" min-width="140" prop="authorityName">
        <template slot-scope="scope">
          <i :class="`el-icon-${scope.row.meta.icon}`"></i>
          <span>{{scope.row.meta.icon}}</span>
        </template>
      </el-table-column>
      <el-table-column fixed="right" label="操作" width="300">
        <template slot-scope="scope">
          <el-button
            @click="addMenu(scope.row.ID)"
            size="small"
            type="primary"
            icon="el-icon-edit"
          >添加子菜单</el-button>
          <el-button
            @click="editMenu(scope.row.ID)"
            size="small"
            type="primary"
            icon="el-icon-edit"
          >编辑</el-button>
          <el-button
            @click="deleteMenu(scope.row.ID)"
            size="small"
            type="danger"
            icon="el-icon-delete"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <el-dialog :before-close="handleClose" :title="dialogTitle" :visible.sync="dialogFormVisible" custom-class="menu-dialog" width="600px">
      <el-form
        :model="formData"
        :rules="rules"
        label-position="right"
        label-width="100px"
        ref="menuForm">
        <el-row :gutter="10">
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
              <el-form-item label="路由name" prop="name" >
                  <el-input
                          @change="changeName"
                          autocomplete="off"
                          placeholder="唯一英文字符串"
                          v-model="formData.name"
                  ></el-input>
              </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
              <el-form-item label="路由path" prop="path" >
                  <el-input placeholder="建议只在后方拼接参数" v-model="formData.path"/>
              </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="是否隐藏" style="width:100%">
              <el-select placeholder="是否在列表隐藏" v-model="formData.hidden">
                <el-option :value="false" label="否"></el-option>
                <el-option :value="true" label="是"></el-option>
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="父节点Id" prop="parentId" style="width:100%">
              <el-cascader
                :disabled="!this.isEdit"
                :options="menuOption"
                :props="{ checkStrictly: true,label:'title',value:'ID',disabled:'disabled',emitPath:false}"
                :show-all-levels="false"
                filterable
                v-model="formData.parentId"
              ></el-cascader>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="文件路径" prop="component" style="width:100%">
              <el-input autocomplete="off" v-model="formData.component"></el-input>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="展示名称" prop="meta.title" style="width:100%">
              <el-input autocomplete="off" v-model="formData.meta.title"></el-input>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="图标" prop="meta.icon" style="width:100%">
              <icon :meta="formData.meta">
                <template slot="prepend">el-icon-</template>
              </icon>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="排序标记" prop="sort" style="width:100%">
              <el-input autocomplete="off" v-model.number="formData.sort"></el-input>
            </el-form-item>
          </el-col>
          <el-col :xs="24" :sm="12" :md="12" :lg="12" :xl="12">
            <el-form-item label="缓存" prop="meta.keepAlive" style="width:100%">
              <el-select placeholder="是否keepAlive缓存页面" v-model="formData.meta.keepAlive">
                <el-option :value="false" label="否"></el-option>
                <el-option :value="true" label="是"></el-option>
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div class="dialog-footer" slot="footer">
        <el-button @click="closeDialog">取 消</el-button>
        <el-button @click="enterDialog" type="primary">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
// 获取列表内容封装在mixins内部  getTableData方法 初始化已封装完成

import {
  updateBaseMenu,
  getMenuList,
  addBaseMenu,
  deleteBaseMenu,
  getBaseMenuById
} from "@/api/menu";
import infoList from "@/mixins/infoList";
import icon from "@/view/superAdmin/menu/icon";
export default {
  name: "Menus",
  mixins: [infoList],
  data() {
    return {
      checkFlag: false,
      listApi: getMenuList,
      dialogFormVisible: false,
      dialogTitle: "新增菜单",
      menuOption: [
        {
          ID: "0",
          title: "根菜单"
        }
      ],
      formData: {
        ID: 0,
        path: "",
        name: "",
        hidden: "",
        parentId: "",
        component: "",
        meta: {
          title: "",
          icon: "",
          defaultMenu: false,
          keepAlive: false
        },
        parameters: []
      },
      rules: {
        name: [{ required: true, message: "请输入菜单name", trigger: "blur" }],
        path: [{required: true, message: "请输入菜单name", trigger: "blur"}],
        component: [
          { required: true, message: "请输入文件路径", trigger: "blur" }
        ],
        "meta.title": [
          { required: true, message: "请输入菜单展示名称", trigger: "blur" }
        ]
      },
      isEdit: false,
      test: ""
    };
  },
  components: {
    icon
  },
  methods: {
    // addParameter(form) {
    //   if (!form.parameters){
    //     this.$set(form,"parameters",[])
    //   }
    //   form.parameters.push({
    //     type: "query",
    //     key: "",
    //     value: ""
    //   });
    // },
    // deleteParameter(parameters, index) {
    //   parameters.splice(index, 1);
    // },
    changeName() {
      this.formData.path = this.formData.name;
    },
    setOptions() {
      this.menuOption = [
        {
          ID: "0",
          title: "根目录"
        }
      ];
      this.setMenuOptions(this.tableData, this.menuOption, false);
    },
    setMenuOptions(menuData, optionsData, disabled) {
      menuData &&
        menuData.map(item => {
          if (item.children && item.children.length) {
            const option = {
              title: item.meta.title,
              ID: String(item.ID),
              disabled: disabled || item.ID == this.formData.ID,
              children: []
            };
            this.setMenuOptions(
              item.children,
              option.children,
              disabled || item.ID == this.formData.ID
            );
            optionsData.push(option);
          } else {
            const option = {
              title: item.meta.title,
              ID: String(item.ID),
              disabled: disabled || item.ID == this.formData.ID
            };
            optionsData.push(option);
          }
        });
    },
    handleClose(done) {
      this.initForm();
      done();
    },
    // 懒加载子菜单
    load(tree, treeNode, resolve) {
      resolve([
        {
          id: 31,
          date: "2016-05-01",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1519 弄"
        },
        {
          id: 32,
          date: "2016-05-01",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1519 弄"
        }
      ]);
    },
    // 删除菜单
    deleteMenu(ID) {
      this.$confirm("此操作将永久删除所有角色下该菜单, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(async () => {
          const res = await deleteBaseMenu({ ID });
          if (res.code == 0) {
            this.$message({
              type: "success",
              message: "删除成功!"
            });
            this.getTableData();
          }
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          });
        });
    },
    // 初始化弹窗内表格方法
    initForm() {
      this.checkFlag = false;
      this.$refs.menuForm.resetFields();
      this.formData = {
        ID: 0,
        path: "",
        name: "",
        hidden: "",
        parentId: "",
        component: "",
        meta: {
          title: "",
          icon: "",
          defaultMenu: false,
          keepAlive: ""
        }
      };
    },
    // 关闭弹窗
    closeDialog() {
      this.initForm();
      this.dialogFormVisible = false;
    },
    // 添加menu
    async enterDialog() {
      this.$refs.menuForm.validate(async valid => {
        if (valid) {
          let res;
          if (this.isEdit) {
            res = await updateBaseMenu(this.formData);
          } else {
            res = await addBaseMenu(this.formData);
          }
          if (res.code == 0) {
            this.$message({
              type: "success",
              message: this.isEdit ? "编辑成功" : "添加成功!"
            });
            this.getTableData();
          }
          this.initForm();
          this.dialogFormVisible = false;
        }
      });
    },
    // 添加菜单方法，id为 0则为添加根菜单
    addMenu(id) {
      this.dialogTitle = "新增菜单";
      this.formData.parentId = String(id);
      this.isEdit = false;
      this.setOptions();
      this.dialogFormVisible = true;
    },
    // 修改菜单方法
    async editMenu(id) {
      this.dialogTitle = "编辑菜单";
      const res = await getBaseMenuById({ id });
      this.formData = res.data.menu;
      this.isEdit = true;
      this.setOptions();
      this.dialogFormVisible = true;
    }
  },
  async created() {
    this.pageSize = 999;
    await this.getTableData();
  }
};
</script>
<style scoped lang="scss">

.button-box {
  padding: 10px 20px;
  .el-button {
    float: right;
  }
}
.warning {
  color: #dc143c;
}
.menu-dialog {
    .header-img-box {
        width: 200px;
        height: 200px;
        border: 1px dashed #ccc;
        border-radius: 20px;
        text-align: center;
        line-height: 200px;
        cursor: pointer;
    }
    .avatar-uploader .el-upload:hover {
        border-color: #409eff;
    }
    .avatar-uploader-icon {
        border: 1px dashed #d9d9d9 !important;
        border-radius: 6px;
        font-size: 28px;
        color: #8c939d;
        width: 178px;
        height: 178px;
        line-height: 178px;
        text-align: center;
    }
    .avatar {
        width: 178px;
        height: 178px;
        display: block;
    }
}
</style>
